The NEWS contacted more than 30 manufacturers and associations involved in the creation of ductwork and related products to ask them what are the top topics contractors should be aware of.
Feedback stated galvanized sheet steel may have been the long-time standard for air conditioning ductwork, but there is a wide range of newer materials such as fiberglass, aluminum, various forms of flexible duct, and one that is especially catching on in Europe and is expected to make a strong impact in North America - spiral metal duct.